Filed under: misc hacks, pcs hacks[imajes]
brought this sweet project
to my attention. The table is reactive thanks to the combination of a projector and a video camera below the surface. The position and unique pattern of each block on the table is used to manipulate the operations of the synth. The software
is open source - so you can build your own. (And it'll run on linux, mac and windows) Check out the videos
for a good demonstration. I'm thinking that one of these could be built on a budget using lumenlab/overhead LCD technology.